Electric drill
US7650699B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 3, 2006 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Oct 1, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electric drill having a function for preventing drilling of unexpected oblique hole. Further, in the electric drill, when the direction of drilling is displaced in drilling work using the electric drill, it is sensed automatically to stop the drilling. The electric drill (1) performs drilling in the direction perpendicular a workpiece (7) and has a tilt sensor (10) mounted on a tilt sensor mounting surface (8) defined in parallel to the ground surface. When the rotation axis (C) of the drill positioned perpendicular to the surface of the workpiece is tilted to an angle equal to or greater than a predetermined angle, the tilt sensor (10) senses the tilt to shutoff a drive current of the electric drill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.